2045034421 has 2 divisors, whose sum is σ = 2045034422. Its totient is φ = 2045034420.

The previous prime is 2045034403. The next prime is 2045034461. The reversal of 2045034421 is 1244305402.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1302199396 + 742835025 = 36086^2 + 27255^2 .

It is a cyclic number.

It is not a de Polignac number, because 2045034421 - 2⁷ = 2045034293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2045034461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022517210 + 1022517211.

It is an arithmetic number, because the mean of its divisors is an integer number (1022517211).

Almost surely, 2^2045034421 is an apocalyptic number.

It is an amenable number.

2045034421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045034421 is an equidigital number, since it uses as much as digits as its factorization.

2045034421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 2045034421 is about 45222.0567975407. The cubic root of 2045034421 is about 1269.3075815101.

Adding to 2045034421 its reverse (1244305402), we get a palindrome (3289339823).

The spelling of 2045034421 in words is "two billion, forty-five million, thirty-four thousand, four hundred twenty-one".